Microphone Issue. Please Help

My built in microphone of my X-61 tablet won't turn off. (Located at the screen frame).Is linked with the volume control for no reason.The only solution I have found is to mute the speakers, but that is a lame solution.I have updated the sound drivers and the result is that it is already up to date.I have tried disabling the driver from the control panel, but the microphone remains on.